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논문 기본 정보

저자정보
(Harbin Institute of Technology) (Harbin Institute of Technology) (Harbin Institute of Technology) (Jiangxi University of Science and Technology)
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대한환경공학회 대한환경공학회 학술발표논문집 IEEC & BWR 2019
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    초록·키워드

    To remediate polluted urban river sediment and generate bioenergy, a novel sediment microbial fuel cell with floating macrophyte Limnobium laevigatum, Pistia stratiotes or Lemna minor L. biocathode (mSMFC) was constructed and assessed under feed-batch/continuous flow mode at different hydraulic retention time (HRT) for 120 days. Oxygen concentrations in the catholyte were increased to 10.01±3.4 mg L^-1 and 13.01±0.7 mg L^-1 in the P. stratiotes and L. laevigatum SMFCs under the batch and continuous flow mode, respectively. The batch operation yielded total COD, nitrate and sulfate removal of 57%, 99% and 99%, respectively, compared to the control SMFC. A maximum voltage output of 0.56±0.26 V, power density of 86.06 mWm^-3, columbic efficiency of 24.7%, normalized energy recovery of 0.033 kWhm^-3, and net energy of 0.020 kWh m^-3 were observed in the L. minor L. SMFC. The 16S rRNA gene sequencing showed Euryarchaeota (90.91%) and Proteobacteria (59.68%) as the dominant phyla affiliated to archaea and bacteria. For ... 전체 초록 보기

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